Patent US1736487A successfully refreshed from Google Patents.
Patent US2953077A successfully refreshed from Google Patents.
US2953077A
Expired / Lapsed
US
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Photographic printing apparatus
Assignee: COPYCAT Ltd
•
Filing: 1958-06-18
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Granted: 1960-09-20
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Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Sanderson Thomas Edwar Francis
- 👤 Amsel Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:18
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/04; G03B27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1711333A
Cited
US2657613A
Cited
US2510142A
Cited
US2682817A
Cited
US2780154A
Cited
US2855834A
Cited
US2857830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |